Revert changes relative to lib/*.[ch] recent renaming

This reverts renaming and usage of lib/*.h header files done
28-12-2012, reverting 2 commits:

  f871de0... build: make use of 76 lib/*.h renamed files
  ffd8e12... build: rename 76 lib/*.h files

This also reverts removal of redundant include guard (redundant thanks
to changes in above commits) done 2-12-2013, reverting 1 commit:

  c087374... curl_setup.h: remove redundant include guard

This also reverts renaming and usage of lib/*.c source files done
3-12-2013, reverting 3 commits:

  13606bb... build: make use of 93 lib/*.c renamed files
  5b6e792... build: rename 93 lib/*.c files
  7d83dff... build: commit 13606bbfde follow-up 1

Start of related discussion thread:

  http://curl.haxx.se/mail/lib-2013-01/0012.html

Asking for confirmation on pushing this revertion commit:

  http://curl.haxx.se/mail/lib-2013-01/0048.html

Confirmation summary:

  http://curl.haxx.se/mail/lib-2013-01/0079.html

NOTICE: The list of 2 files that have been modified by other
intermixed commits, while renamed, and also by at least one
of the 6 commits this one reverts follows below. These 2 files
will exhibit a hole in history unless git's '--follow' option
is used when viewing logs.

  lib/curl_imap.h
  lib/curl_smtp.h

1 files changed, 0 insertions, 687 deletions

diff --git a/lib/curl_setup.h b/lib/curl_setup.h
deleted file mode 100644
index 37be5ae46..000000000
--- a/lib/curl_setup.h
+++ /dev/null
@@ -1,687 +0,0 @@
-#ifndef HEADER_CURL_SETUP_H
-#define HEADER_CURL_SETUP_H
-/***************************************************************************
- *                                  _   _ ____  _
- *  Project                     ___| | | |  _ \| |
- *                             / __| | | | |_) | |
- *                            | (__| |_| |  _ <| |___
- *                             \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
-
-/*
- * Define WIN32 when build target is Win32 API
- */
-
-#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) && \
-    !defined(__SYMBIAN32__)
-#define WIN32
-#endif
-
-/*
- * Include configuration script results or hand-crafted
- * configuration file for platforms which lack config tool.
- */
-
-#ifdef HAVE_CONFIG_H
-
-#include "curl_config.h"
-
-#else /* HAVE_CONFIG_H */
-
-#ifdef _WIN32_WCE
-#  include "config-win32ce.h"
-#else
-#  ifdef WIN32
-#    include "config-win32.h"
-#  endif
-#endif
-
-#if defined(macintosh) && defined(__MRC__)
-#  include "config-mac.h"
-#endif
-
-#ifdef __riscos__
-#  include "config-riscos.h"
-#endif
-
-#ifdef __AMIGA__
-#  include "config-amigaos.h"
-#endif
-
-#ifdef __SYMBIAN32__
-#  include "config-symbian.h"
-#endif
-
-#ifdef __OS400__
-#  include "config-os400.h"
-#endif
-
-#ifdef TPF
-#  include "config-tpf.h"
-#endif
-
-#ifdef __VXWORKS__
-#  include "config-vxworks.h"
-#endif
-
-#endif /* HAVE_CONFIG_H */
-
-/* ================================================================ */
-/* Definition of preprocessor macros/symbols which modify compiler  */
-/* behavior or generated code characteristics must be done here,   */
-/* as appropriate, before any system header file is included. It is */
-/* also possible to have them defined in the config file included   */
-/* before this point. As a result of all this we frown inclusion of */
-/* system header files in our config files, avoid this at any cost. */
-/* ================================================================ */
-
-/*
- * AIX 4.3 and newer needs _THREAD_SAFE defined to build
- * proper reentrant code. Others may also need it.
- */
-
-#ifdef NEED_THREAD_SAFE
-#  ifndef _THREAD_SAFE
-#    define _THREAD_SAFE
-#  endif
-#endif
-
-/*
- * Tru64 needs _REENTRANT set for a few function prototypes and
- * things to appear in the system header files. Unixware needs it
- * to build proper reentrant code. Others may also need it.
- */
-
-#ifdef NEED_REENTRANT
-#  ifndef _REENTRANT
-#    define _REENTRANT
-#  endif
-#endif
-
-/* ================================================================ */
-/*  If you need to include a system header file for your platform,  */
-/*  please, do it beyond the point further indicated in this file.  */
-/* ================================================================ */
-
-/*
- * libcurl's external interface definitions are also used internally,
- * and might also include required system header files to define them.
- */
-
-#include <curl/curlbuild.h>
-
-/*
- * Compile time sanity checks must also be done when building the library.
- */
-
-#include <curl/curlrules.h>
-
-/*
- * Ensure that no one is using the old SIZEOF_CURL_OFF_T macro
- */
-
-#ifdef SIZEOF_CURL_OFF_T
-#  error "SIZEOF_CURL_OFF_T shall not be defined!"
-   Error Compilation_aborted_SIZEOF_CURL_OFF_T_shall_not_be_defined
-#endif
-
-/*
- * Set up internal curl_off_t formatting string directives for
- * exclusive use with libcurl's internal *printf functions.
- */
-
-#ifdef FORMAT_OFF_T
-#  error "FORMAT_OFF_T shall not be defined before this point!"
-   Error Compilation_aborted_FORMAT_OFF_T_already_defined
-#endif
-
-#ifdef FORMAT_OFF_TU
-#  error "FORMAT_OFF_TU shall not be defined before this point!"
-   Error Compilation_aborted_FORMAT_OFF_TU_already_defined
-#endif
-
-#if (CURL_SIZEOF_CURL_OFF_T > CURL_SIZEOF_LONG)
-#  define FORMAT_OFF_T  "lld"
-#  define FORMAT_OFF_TU "llu"
-#else
-#  define FORMAT_OFF_T  "ld"
-#  define FORMAT_OFF_TU "lu"
-#endif
-
-/*
- * Disable other protocols when http is the only one desired.
- */
-
-#ifdef HTTP_ONLY
-#  ifndef CURL_DISABLE_TFTP
-#    define CURL_DISABLE_TFTP
-#  endif
-#  ifndef CURL_DISABLE_FTP
-#    define CURL_DISABLE_FTP
-#  endif
-#  ifndef CURL_DISABLE_LDAP
-#    define CURL_DISABLE_LDAP
-#  endif
-#  ifndef CURL_DISABLE_TELNET
-#    define CURL_DISABLE_TELNET
-#  endif
-#  ifndef CURL_DISABLE_DICT
-#    define CURL_DISABLE_DICT
-#  endif
-#  ifndef CURL_DISABLE_FILE
-#    define CURL_DISABLE_FILE
-#  endif
-#  ifndef CURL_DISABLE_RTSP
-#    define CURL_DISABLE_RTSP
-#  endif
-#  ifndef CURL_DISABLE_POP3
-#    define CURL_DISABLE_POP3
-#  endif
-#  ifndef CURL_DISABLE_IMAP
-#    define CURL_DISABLE_IMAP
-#  endif
-#  ifndef CURL_DISABLE_SMTP
-#    define CURL_DISABLE_SMTP
-#  endif
-#  ifndef CURL_DISABLE_RTSP
-#    define CURL_DISABLE_RTSP
-#  endif
-#  ifndef CURL_DISABLE_RTMP
-#    define CURL_DISABLE_RTMP
-#  endif
-#  ifndef CURL_DISABLE_GOPHER
-#    define CURL_DISABLE_GOPHER
-#  endif
-#endif
-
-/*
- * When http is disabled rtsp is not supported.
- */
-
-#if defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_RTSP)
-#  define CURL_DISABLE_RTSP
-#endif
-
-/* ================================================================ */
-/* No system header file shall be included in this file before this */
-/* point. The only allowed ones are those included from curlbuild.h */
-/* ================================================================ */
-
-/*
- * OS/400 setup file includes some system headers.
- */
-
-#ifdef __OS400__
-#  include "setup-os400.h"
-#endif
-
-/*
- * Include header files for windows builds before redefining anything.
- * Use this preprocessor block only to include or exclude windows.h,
- * winsock2.h, ws2tcpip.h or winsock.h. Any other windows thing belongs
- * to any other further and independent block.  Under Cygwin things work
- * just as under linux (e.g. <sys/socket.h>) and the winsock headers should
- * never be included when __CYGWIN__ is defined.  configure script takes
- * care of this, not defining HAVE_WINDOWS_H, HAVE_WINSOCK_H, HAVE_WINSOCK2_H,
- * neither HAVE_WS2TCPIP_H when __CYGWIN__ is defined.
- */
-
-#ifdef HAVE_WINDOWS_H
-#  if defined(UNICODE) && !defined(_UNICODE)
-#    define _UNICODE
-#  endif
-#  if defined(_UNICODE) && !defined(UNICODE)
-#    define UNICODE
-#  endif
-#  ifndef WIN32_LEAN_AND_MEAN
-#    define WIN32_LEAN_AND_MEAN
-#  endif
-#  include <windows.h>
-#  ifdef HAVE_WINSOCK2_H
-#    include <winsock2.h>
-#    ifdef HAVE_WS2TCPIP_H
-#       include <ws2tcpip.h>
-#    endif
-#  else
-#    ifdef HAVE_WINSOCK_H
-#      include <winsock.h>
-#    endif
-#  endif
-#  include <tchar.h>
-#endif
-
-/*
- * Define USE_WINSOCK to 2 if we have and use WINSOCK2 API, else
- * define USE_WINSOCK to 1 if we have and use WINSOCK  API, else
- * undefine USE_WINSOCK.
- */
-
-#undef USE_WINSOCK
-
-#ifdef HAVE_WINSOCK2_H
-#  define USE_WINSOCK 2
-#else
-#  ifdef HAVE_WINSOCK_H
-#    define USE_WINSOCK 1
-#  endif
-#endif
-
-#ifdef USE_LWIPSOCK
-#  include <lwip/init.h>
-#  include <lwip/sockets.h>
-#  include <lwip/netdb.h>
-#endif
-
-#ifdef HAVE_EXTRA_STRICMP_H
-#  include <extra/stricmp.h>
-#endif
-
-#ifdef HAVE_EXTRA_STRDUP_H
-#  include <extra/strdup.h>
-#endif
-
-#ifdef TPF
-#  include <strings.h>    /* for bzero, strcasecmp, and strncasecmp */
-#  include <string.h>     /* for strcpy and strlen */
-#  include <stdlib.h>     /* for rand and srand */
-#  include <sys/socket.h> /* for select and ioctl*/
-#  include <netdb.h>      /* for in_addr_t definition */
-#  include <tpf/sysapi.h> /* for tpf_process_signals */
-   /* change which select is used for libcurl */
-#  define select(a,b,c,d,e) tpf_select_libcurl(a,b,c,d,e)
-#endif
-
-#ifdef __VXWORKS__
-#  include <sockLib.h>    /* for generic BSD socket functions */
-#  include <ioLib.h>      /* for basic I/O interface functions */
-#endif
-
-#ifdef __AMIGA__
-#  ifndef __ixemul__
-#    include <exec/types.h>
-#    include <exec/execbase.h>
-#    include <proto/exec.h>
-#    include <proto/dos.h>
-#    define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
-#  endif
-#endif
-
-#include <stdio.h>
-#ifdef HAVE_ASSERT_H
-#include <assert.h>
-#endif
-
-#ifdef __TANDEM /* for nsr-tandem-nsk systems */
-#include <floss.h>
-#endif
-
-#ifndef STDC_HEADERS /* no standard C headers! */
-#include <curl/stdcheaders.h>
-#endif
-
-#ifdef __POCC__
-#  include <sys/types.h>
-#  include <unistd.h>
-#  define sys_nerr EILSEQ
-#endif
-
-/*
- * Salford-C kludge section (mostly borrowed from wxWidgets).
- */
-#ifdef __SALFORDC__
-  #pragma suppress 353             /* Possible nested comments */
-  #pragma suppress 593             /* Define not used */
-  #pragma suppress 61              /* enum has no name */
-  #pragma suppress 106             /* unnamed, unused parameter */
-  #include <clib.h>
-#endif
-
-/*
- * Large file (>2Gb) support using WIN32 functions.
- */
-
-#ifdef USE_WIN32_LARGE_FILES
-#  include <io.h>
-#  include <sys/types.h>
-#  include <sys/stat.h>
-#  undef  lseek
-#  define lseek(fdes,offset,whence)  _lseeki64(fdes, offset, whence)
-#  define fstat(fdes,stp)            _fstati64(fdes, stp)
-#  define stat(fname,stp)            _stati64(fname, stp)
-#  define struct_stat                struct _stati64
-#  define LSEEK_ERROR                (__int64)-1
-#endif
-
-/*
- * Small file (<2Gb) support using WIN32 functions.
- */
-
-#ifdef USE_WIN32_SMALL_FILES
-#  include <io.h>
-#  include <sys/types.h>
-#  include <sys/stat.h>
-#  ifndef _WIN32_WCE
-#    undef  lseek
-#    define lseek(fdes,offset,whence)  _lseek(fdes, (long)offset, whence)
-#    define fstat(fdes,stp)            _fstat(fdes, stp)
-#    define stat(fname,stp)            _stat(fname, stp)
-#    define struct_stat                struct _stat
-#  endif
-#  define LSEEK_ERROR                (long)-1
-#endif
-
-#ifndef struct_stat
-#  define struct_stat struct stat
-#endif
-
-#ifndef LSEEK_ERROR
-#  define LSEEK_ERROR (off_t)-1
-#endif
-
-/*
- * Default sizeof(off_t) in case it hasn't been defined in config file.
- */
-
-#ifndef SIZEOF_OFF_T
-#  if defined(__VMS) && !defined(__VAX)
-#    if defined(_LARGEFILE)
-#      define SIZEOF_OFF_T 8
-#    endif
-#  elif defined(__OS400__) && defined(__ILEC400__)
-#    if defined(_LARGE_FILES)
-#      define SIZEOF_OFF_T 8
-#    endif
-#  elif defined(__MVS__) && defined(__IBMC__)
-#    if defined(_LP64) || defined(_LARGE_FILES)
-#      define SIZEOF_OFF_T 8
-#    endif
-#  elif defined(__370__) && defined(__IBMC__)
-#    if defined(_LP64) || defined(_LARGE_FILES)
-#      define SIZEOF_OFF_T 8
-#    endif
-#  endif
-#  ifndef SIZEOF_OFF_T
-#    define SIZEOF_OFF_T 4
-#  endif
-#endif
-
-/*
- * Arg 2 type for gethostname in case it hasn't been defined in config file.
- */
-
-#ifndef GETHOSTNAME_TYPE_ARG2
-#  ifdef USE_WINSOCK
-#    define GETHOSTNAME_TYPE_ARG2 int
-#  else
-#    define GETHOSTNAME_TYPE_ARG2 size_t
-#  endif
-#endif
-
-/* Below we define some functions. They should
-
-   4. set the SIGALRM signal timeout
-   5. set dir/file naming defines
-   */
-
-#ifdef WIN32
-
-#  define DIR_CHAR      "\\"
-#  define DOT_CHAR      "_"
-
-#else /* WIN32 */
-
-#  ifdef MSDOS  /* Watt-32 */
-
-#    include <sys/ioctl.h>
-#    define select(n,r,w,x,t) select_s(n,r,w,x,t)
-#    define ioctl(x,y,z) ioctlsocket(x,y,(char *)(z))
-#    include <tcp.h>
-#    ifdef word
-#      undef word
-#    endif
-#    ifdef byte
-#      undef byte
-#    endif
-
-#  endif /* MSDOS */
-
-#  ifdef __minix
-     /* Minix 3 versions up to at least 3.1.3 are missing these prototypes */
-     extern char * strtok_r(char *s, const char *delim, char **last);
-     extern struct tm * gmtime_r(const time_t * const timep, struct tm *tmp);
-#  endif
-
-#  define DIR_CHAR      "/"
-#  ifndef DOT_CHAR
-#    define DOT_CHAR      "."
-#  endif
-
-#  ifdef MSDOS
-#    undef DOT_CHAR
-#    define DOT_CHAR      "_"
-#  endif
-
-#  ifndef fileno /* sunos 4 have this as a macro! */
-     int fileno( FILE *stream);
-#  endif
-
-#endif /* WIN32 */
-
-/*
- * msvc 6.0 requires PSDK in order to have INET6_ADDRSTRLEN
- * defined in ws2tcpip.h as well as to provide IPv6 support.
- */
-
-#if defined(_MSC_VER) && !defined(__POCC__)
-#  if !defined(HAVE_WS2TCPIP_H) || \
-     ((_MSC_VER < 1300) && !defined(INET6_ADDRSTRLEN))
-#    undef HAVE_GETADDRINFO_THREADSAFE
-#    undef HAVE_FREEADDRINFO
-#    undef HAVE_GETADDRINFO
-#    undef HAVE_GETNAMEINFO
-#    undef ENABLE_IPV6
-#  endif
-#endif
-
-/* ---------------------------------------------------------------- */
-/*             resolver specialty compile-time defines              */
-/*         CURLRES_* defines to use in the host*.c sources          */
-/* ---------------------------------------------------------------- */
-
-/*
- * lcc-win32 doesn't have _beginthreadex(), lacks threads support.
- */
-
-#if defined(__LCC__) && defined(WIN32)
-#  undef USE_THREADS_POSIX
-#  undef USE_THREADS_WIN32
-#endif
-
-/*
- * MSVC threads support requires a multi-threaded runtime library.
- * _beginthreadex() is not available in single-threaded ones.
- */
-
-#if defined(_MSC_VER) && !defined(__POCC__) && !defined(_MT)
-#  undef USE_THREADS_POSIX
-#  undef USE_THREADS_WIN32
-#endif
-
-/*
- * Mutually exclusive CURLRES_* definitions.
- */
-
-#ifdef USE_ARES
-#  define CURLRES_ASYNCH
-#  define CURLRES_ARES
-/* now undef the stock libc functions just to avoid them being used */
-#  undef HAVE_GETADDRINFO
-#  undef HAVE_GETHOSTBYNAME
-#elif defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32)
-#  define CURLRES_ASYNCH
-#  define CURLRES_THREADED
-#else
-#  define CURLRES_SYNCH
-#endif
-
-#ifdef ENABLE_IPV6
-#  define CURLRES_IPV6
-#else
-#  define CURLRES_IPV4
-#endif
-
-/* ---------------------------------------------------------------- */
-
-/*
- * When using WINSOCK, TELNET protocol requires WINSOCK2 API.
- */
-
-#if defined(USE_WINSOCK) && (USE_WINSOCK != 2)
-#  define CURL_DISABLE_TELNET 1
-#endif
-
-/*
- * msvc 6.0 does not have struct sockaddr_storage and
- * does not define IPPROTO_ESP in winsock2.h. But both
- * are available if PSDK is properly installed.
- */
-
-#if defined(_MSC_VER) && !defined(__POCC__)
-#  if !defined(HAVE_WINSOCK2_H) || ((_MSC_VER < 1300) && !defined(IPPROTO_ESP))
-#    undef HAVE_STRUCT_SOCKADDR_STORAGE
-#  endif
-#endif
-
-/*
- * Intentionally fail to build when using msvc 6.0 without PSDK installed.
- * The brave of heart can circumvent this, defining ALLOW_MSVC6_WITHOUT_PSDK
- * in lib/config-win32.h although absolutely discouraged and unsupported.
- */
-
-#if defined(_MSC_VER) && !defined(__POCC__)
-#  if !defined(HAVE_WINDOWS_H) || ((_MSC_VER < 1300) && !defined(_FILETIME_))
-#    if !defined(ALLOW_MSVC6_WITHOUT_PSDK)
-#      error MSVC 6.0 requires "February 2003 Platform SDK" a.k.a. \
-             "Windows Server 2003 PSDK"
-#    else
-#      define CURL_DISABLE_LDAP 1
-#    endif
-#  endif
-#endif
-
-#ifdef NETWARE
-int netware_init(void);
-#ifndef __NOVELL_LIBC__
-#include <sys/bsdskt.h>
-#include <sys/timeval.h>
-#endif
-#endif
-
-#if defined(HAVE_LIBIDN) && defined(HAVE_TLD_H)
-/* The lib was present and the tld.h header (which is missing in libidn 0.3.X
-   but we only work with libidn 0.4.1 or later) */
-#define USE_LIBIDN
-#endif
-
-#ifndef SIZEOF_TIME_T
-/* assume default size of time_t to be 32 bit */
-#define SIZEOF_TIME_T 4
-#endif
-
-#define LIBIDN_REQUIRED_VERSION "0.4.1"
-
-#if defined(USE_GNUTLS) || defined(USE_SSLEAY) || defined(USE_NSS) || \
-    defined(USE_QSOSSL) || defined(USE_POLARSSL) || defined(USE_AXTLS) || \
-    defined(USE_CYASSL) || defined(USE_SCHANNEL) || \
-    defined(USE_DARWINSSL)
-#define USE_SSL    /* SSL support has been enabled */
-#endif
-
-#if defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)
-#define USE_HTTP_NEGOTIATE
-#endif
-
-/* Single point where USE_NTLM definition might be done */
-#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_NTLM)
-#if defined(USE_SSLEAY) || defined(USE_WINDOWS_SSPI) || \
-    defined(USE_GNUTLS) || defined(USE_NSS) || defined(USE_DARWINSSL)
-#define USE_NTLM
-#endif
-#endif
-
-/* non-configure builds may define CURL_WANTS_CA_BUNDLE_ENV */
-#if defined(CURL_WANTS_CA_BUNDLE_ENV) && !defined(CURL_CA_BUNDLE)
-#define CURL_CA_BUNDLE getenv("CURL_CA_BUNDLE")
-#endif
-
-/*
- * Provide a mechanism to silence picky compilers, such as gcc 4.6+.
- * Parameters should of course normally not be unused, but for example when
- * we have multiple implementations of the same interface it may happen.
- */
-
-#if defined(__GNUC__) && ((__GNUC__ >= 3) || \
-  ((__GNUC__ == 2) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ >= 7)))
-#  define UNUSED_PARAM __attribute__((__unused__))
-#else
-#  define UNUSED_PARAM /*NOTHING*/
-#endif
-
-/*
- * Include macros and defines that should only be processed once.
- */
-
-#include "curl_setup_once.h"
-
-/*
- * Definition of our NOP statement Object-like macro
- */
-
-#ifndef Curl_nop_stmt
-#  define Curl_nop_stmt do { } WHILE_FALSE
-#endif
-
-/*
- * Ensure that Winsock and lwIP TCP/IP stacks are not mixed.
- */
-
-#if defined(__LWIP_OPT_H__)
-#  if defined(SOCKET) || \
-     defined(USE_WINSOCK) || \
-     defined(HAVE_WINSOCK_H) || \
-     defined(HAVE_WINSOCK2_H) || \
-     defined(HAVE_WS2TCPIP_H)
-#    error "Winsock and lwIP TCP/IP stack definitions shall not coexist!"
-#  endif
-#endif
-
-/*
- * Portable symbolic names for Winsock shutdown() mode flags.
- */
-
-#ifdef USE_WINSOCK
-#  define SHUT_RD   0x00
-#  define SHUT_WR   0x01
-#  define SHUT_RDWR 0x02
-#endif
-
-/* Define S_ISREG if not defined by system headers, f.e. MSVC */
-#if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
-#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
-#endif
-
-#endif /* HEADER_CURL_SETUP_H */